I have a polygon Shapefile, which I need to generalize. How can I generalize the poligons and ensure that there are no topological errors like "slivers".
I already tried:
- Vector -> Geometry Tools -> polygones to lines
- Vector -> Geometry Tools -> simplfy geometries ... here I can already see on the screen, that I am producing overlaps and gaps nevertheless now I try
- Vector -> Geometry Tools -> lines to polgones
and here the program show an error and crashes
Answer
GRASS is topology-aware. You can use v.generalize from the Processing toolbox to simplify polygons and if the input data is topologically correct so will the output.
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